Motorcades tangle traffic

Traffic is at a near standstill in part of Washington because of dignitaries traveling to and from the 47-nation nuclear security summit going on in the city.

District Department of Transportation spokeswoman Karyn LeBlanc said Tuesday morning that backups and delays are centered around the convention center, where the summit is being held, and that the outskirts of the city don't seem to be affected.

She says a number of motorcades were backing up traffic. LeBlance said congestion should begin to ease later in the morning.